Function opensc_sys::list_attributes_comparator

pub unsafe extern "C" fn list_attributes_comparator(
    l: *mut list_t, 
    comparator_fun: element_comparator
) -> c_int

set the comparator function for list elements.

Comparator functions are used for searching and sorting. If NULL is passed as reference to the function, the comparator is disabled.

@param l list to operate @param comparator_fun pointer to the actual comparator function @return 0 if the attribute was successfully set; -1 otherwise

@see element_comparator()